Improvement in wagon-jacks



1. B. WEBSTER. Magnin-Jack.v No. 159,725a l Paxenfed-Fgbangn.

STATES PATENT OFFICE.

JOSHUA B. WEBSTER, OF GENOA, N. Y., ASSIGNOE OF TWO-THIRDS HIS RIGHT TO MARQUIS D. KING AND LUOIEN B. KING, OF SAME PLACE.

IMPROVEMENT IN WAGON-JACKS.

Speeication forming part of Letters Patent No. 159,726, dated February 9, 1875; application filed January 7, 1875.

To all whom it may concern:

Be it known that I, JosHUA B. WEBsTEE, of Genoa, county of Cayuga and State of New York, have invented certain Improvements in Wagon-Jacks, of which the following is a specification:

The object of my invention is to provide for an adjustable self-locking wagon-jack, which is easily folded together within a small coinpass for transportation. My invention consists in the peculiar construction and arrangement ot' the three several parts of which lny improved jack is made. The irst part consists ot' the lifting-tree, having a number of guards attached to the upper side, on which the axle rests, these'guards preventing the slipping of the axle. On the lower end of the lifting-tree is a shoe or guard, preventing the tree from slipping on the ground. On the opposite end of the tree is formed a vertical slot by two metallic plates being riveted to the tree itself, and both connected at their ends by a rivet. In this slot operates the second part or the lever of the jack. The same rivet which holds the forementioned plates together is inserted in a slot formed in the head ofthe lever. This slot is extending outward and at a right angle to the arm or handle of the lever. Opposite this arm is cut into the head ot the lever a smaller slot communicating with the iirstmentioned slot in the head. A guard or rest is formed in the head opposite the arm, which serves as a fulcrum for the lever when the jack is placed in position for use. Opposite this guard is riveted to the head the third part or the foot of the jack.

In order to describe my invention more fully I refer to the accompanying drawing, forming a part of this specification, of which- Figure I is a side view of' my improved jack when folded up for transportation. Fig. II is a sideview of the same when in use, the dotted lines showing the position of the parts when lifting a wagon.

A is the first part of the jack or the liftingtree, with guards b, shoe c, and the two metallic plates d d, in the end of which the rivet e is inserted. f f are the rivets holding the plates d d to the tree A. G is the second part of the jack or the lever, with head h, in which the large slot t' and the smaller slot j are cut. K is the arm or handle of the lever G. the rest or guard formed in the head h. M is the third part or the foot of the jack, being pivoted to the head h by aid of rivet n.

The operation of my improved jack is as follows: When the parts are adjusted, as shown in Fig. II, the jack is ready for use. By pressing the handle K downward, part A is raised, and, consequently, also the wagon-axle resting on guard b. When the handle K is parallel with the foot M the jack may be termed self-locking, as no aid is required to hold the handle in the downward position.

Having thus described my invention, I desire to claim- -The lever G, provided with the head h, into which are cut two slots, i andj, in combination with part A, with guards b, and with part M, all arranged and operating as described.

This'specication signed this 28th day of December, 1874..

JOSHUA B. WEBSTER.

Witnesses:

J oHN NIBLo, J. A. GREENEiELD.

lis- 

